Structural, optical and electrical characterization of antimony-substituted tin oxide nanoparticles

resumo

Antimony-doped tin oxide (ATO) nanostructures were prepared using chemical precipitation technique starting from SnCl(2), SbCl(3) as precursor compounds. The antimony composition was varied from 5 to 20 wt%. The lower resistance was observed at composition of Sn:95 and Sb:05, when compared with undoped and higher doping concentration of antimony. The average crystalline size of undoped and doped tin oxide was calculated from the X-ray diffraction (XRD) pattern and found to be in the range of 30-11 nm and it was further confirmed from the transmission electron microscopy (TEM) studies. The scanning electron microscopy (SEM) analysis showed that the nanoparticles agglomerates forming spherical-shaped particles of few hundreds nanometers. The samples were further analyzed by energy dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and electrical resistance measurements. (C) 2009 Elsevier Ltd. All rights reserved.

palavras-chave

THIN-FILMS; ATO NANOPARTICLES; SNO2; MICROSTRUCTURE; POWDERS; CELLS

categoria

Chemistry; Physics

autores

Krishnakumar, T; Jayaprakash, R; Pinna, N; Phani, AR; Passacantando, M; Santucci, S

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